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Thermodynamic study and synthesis of gamma-aluminum oxynitride
KTH, Superseded Departments, Materials Science and Engineering.
2002 (English)In: Scandinavian journal of metallurgy, ISSN 0371-0459, Vol. 31, no 1, 1-6 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents the results of the investigation of the thermodynamic properties of I-aluminum oxynitride (AION). The phase relations and thermodynamic properties of NON were analyzed and the Gibbs energies of NON with different compositions and temperatures were calculated by a thermodynamic quasi-parabola rule. Potential phase diagrams of Al-O-N system at different conditions have also been calculated. The synthesis conditions of NON have been determined. NON was synthesized by sintering the starting materials at 25MPa in N-2 flow at 2073K for 3h. Crystal characteristics and microstructures of AION were determined.

Place, publisher, year, edition, pages
2002. Vol. 31, no 1, 1-6 p.
Keyword [en]
gamma-aluminum oxynitride, synthesis, thermodynamics, phase-relations, system, oxide, alon
URN: urn:nbn:se:kth:diva-21403ISI: 000174546300001OAI: diva2:340101
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Seetharaman, Seshadri
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